I had some grey on one and did not know it was bruising. I read to put a pin hole where the bruise is so that it can at least breathe but did not know that so it died, fully developed. I was so sad.Also watch for any light grey patches on the shell. If you have that definitely dead and the clock is ticking
 
	 
			
		
		
		
	
	
			
		 
 
		 
 
		 
 
		 
			
		
		
		
	
	
			
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		